Enantioselective hydrolysis of naproxen ethyl ester catalyzed by monoclonal antibodies
作者:Zhen-Dan Shi、Bing-Hui Yang、Jing-Jing Zhao、Yu-Lin Wu、Yong-Yong Ji、Ming Yeh
DOI:10.1016/s0968-0896(02)00074-3
日期:2002.7
phosphonate 3 designed as the mimic of the transition state of hydrolysis of naproxen ethyl ester was successfully synthesized from easily available 2-acetyl-6-methoxy-naphthalene 5. Then BALB/C mice were immunized and one of the monoclonal catalytic antibodies, N116-27, which enantioselectively accelerated the hydrolysis of the R-(-)-naproxen ethyl ester was given. The Michaelis-Menton parameter for the catalyzed
该报告描述了从易于获得的2-乙酰基-6-甲氧基萘5中成功合成了模仿萘普生乙酯水解过渡态的外消旋膦酸酯3的半抗原。然后免疫BALB / C小鼠,一只给出了对映选择性地加速R-(-)-萘普生乙酯水解的单克隆催化抗体N116-27。催化反应的Michaelis-Menton参数为K(M)= 6.67 mM和k(cat)/ k(uncat)= 5.8 x 10(4)。该对映选择性的结果是由于rac-半抗原的R-异构体比S-异构体具有更高的免疫原性这一事实所解释。